Jiangsu Longdai Environmental Protection Group Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 100Set Per Month |
| Delivery Time | 30 working days |
| Packaging Details | Wooden or customized |
| Description | Solid-liquid Separation Machine |
| Bowl Sped | 4000r/min |
| Material | SS304 |
| Machinery | separation centrifuge |
| Easy maintenance | Quick disassembly and cleaning |
| Collocation | Double motor with double transduce |
| Discharge | Automatic discharge |
| Automatic operation | Programmable PLC control |
| Bowl Diameter | 600mm |
| High speed | 3000 rpm |
| Brand Name | Longdai |
| Model Number | LW |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 100Set Per Month |
| Delivery Time | 30 working days | Packaging Details | Wooden or customized |
| Description | Solid-liquid Separation Machine | Bowl Sped | 4000r/min |
| Material | SS304 | Machinery | separation centrifuge |
| Easy maintenance | Quick disassembly and cleaning | Collocation | Double motor with double transduce |
| Discharge | Automatic discharge | Automatic operation | Programmable PLC control |
| Bowl Diameter | 600mm | High speed | 3000 rpm |
| Brand Name | Longdai | Model Number | LW |
| Place of Origin | China | ||
| High Light | Decanter centrifuge industrial water treatment ，Decanter centrifuge solid-liquid separation ，Decanter centrifuge selection guidelines | ||
As industrial wastewater discharge standards become increasingly stringent and municipal sludge treatment requirements continue to rise, decanter centrifuges have emerged as a core technology for solid-liquid separation in water treatment projects worldwide. Thanks to their advantages—continuous operation, fully enclosed design, high throughput, and high automation—they are now indispensable in both municipal and industrial applications.
Demand is especially strong in overseas markets such as the Middle East, Southeast Asia, South America, Africa, and Eastern Europe, where infrastructure development and industrial modernization are accelerating. In these regions, decanter centrifuges are highly valued for their ability to handle high-solids-content and high-viscosity feed materials reliably and efficiently.
The following parameters represent general ranges suitable for municipal and industrial wastewater applications. Custom designs are available based on specific throughput requirements and feed characteristics.
| Parameter Category | Parameter Item | Technical Range |
|---|---|---|
| Physical Dimensions | Bowl Diameter (mm) | 250 / 360 / 450 / 550 / 650 / 750 / 900 |
| Length-to-Diameter Ratio (L/D) | 3.5 – 4.5 (high-dryness models: 4.0–5.0) | |
| Speed & Separation Performance | Max Bowl Speed (rpm) | 3000–4500 (small diameters); 1500–2800 (large diameters) |
| G-Force (Separation Factor) | 1500 – 4000 | |
| Differential Speed Range (rpm) | 0.5 – 20 (infinitely adjustable) | |
| Drive System | Main Motor Power (kW) | 7.5 – 132 |
| Auxiliary (Scroll) Motor Power (kW) | 2.2 – 45 | |
| Capacity & Efficiency | Max Throughput (m³/h) | 2 – 120 (water-equivalent; varies with sludge type) |
| Solids Recovery Rate (%) | ≥95% – 99% | |
| Separation Performance | Cake Dry Solids Content (%) | 20 – 40 (typical municipal sludge: 25–30%) |
| Liquid Phase Suspended Solids (mg/L) | ≤500 – 5000 (with optimized flocculation: <200 mg/L achievable) | |
| Operational Conditions | Noise Level (dB(A)) | ≤85 (at 1 m distance, with enclosure) |
| Vibration Severity (mm/s) | ≤4.5 | |
| Operating Temperature (°C) | 0 – 80 (special designs up to 120°C) | |
| Operating Pressure | Slight negative pressure or atmospheric (fully enclosed) | |
| Materials of Construction | Bowl Material | Duplex 2205 / 316L stainless steel / Abrasion-resistant carbon steel |
| Scroll (Screw Conveyor) | 316L + tungsten carbide cladding / ceramic tiles | |
| Casing Material | 304 / 316L stainless steel | |
| Control & Electrical | Control System | PLC + HMI touchscreen interface |
| Automation Features | Remote start/stop, auto differential speed control, alarm logging, load feedback | |
| Communication Protocols | Modbus RTU/TCP, Profibus DP, Profinet (optional) | |
| Protection Rating | IP54 / IP55 (motors); Control cabinet: IP42 | |
| Explosion Protection | Ex d IIB T4 (optional, for oil/gas, chemical, pharma) | |
| Other | Approx. Weight (kg) | 800 – 12,000 (model-dependent) |
| Installation Method | Anti-vibration rubber mounts or spring isolators; no anchor bolts required |
| Accessory | Function Description |
|---|---|
| Centripetal Pump | Enhances liquid clarity and minimizes solids carryover in centrate |
| Back Pressure Plate (Beach Plate) | Increases cake dryness, especially effective for high-moisture feeds |
| Temperature Sensors | Monitors main bearing and gearbox temperatures to prevent overheating |
| Vibration Sensors | Complies with ISO 10816; enables real-time condition monitoring |
| Acoustic Enclosure | Reduces noise levels to <75 dB(A) for sensitive environments |
| Nitrogen Purging System | Provides inert atmosphere for explosion-proof operation in hazardous areas |
| In-Line CIP Nozzles | Enables automatic cleaning for sticky or adhesive materials, reducing downtime |
| Wear-Resistant Coatings (Tungsten Carbide / Ceramic) | Extends service life in highly abrasive applications (e.g., mining tailings, sand-laden wastewater) |
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2010
Total Annual:
7000000-8000000
Employee Number:
64~100
Ecer Certification：
Verified Supplier
Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three br... Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three br...
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